The floor type speaker system developed as an ESS
highest-class model.

A heil driver is carried in a high region and a
30cm corn type Woofer and a 30cm passive radiator are carried in amt-monitor
low-pass.

The accordion pleats made from Teflon are placed into the
powerful magnetic field, and the heil driver has the structure where the element
(electric conduction belt) was embedded on the side of each pleat of a pleat.
If a signal is impressed to this element, current will flow, by motion of a
pleat, air is compressed and sound is emitted to space. In order that a
voice coil may emit sound to space directly by this operation, the outstanding
dumping characteristic and low distortion are realized.

It is as heterogeneous as the pulp developed by the engineer of BBC on
the corn of the 30cm Woofer adopted as low-pass, and vectren of the polystyrene
compound is used for it. Moreover, a 30cm passive radiator is mounted by the front along with
a Woofer.

Walnut material is used for the enclosure, and sufficient
capacity is secured so that a low-pitched sound play of 30Hz or less can be
performed.